1. From the Divisions of Nephrology and Critical Care Medicine, University of Alberta, and the Institute of Health Economics, Edmonton, Alberta, Canada (M.T.); Department of Medicine, Dumfries and Galloway Royal Infirmary, Dumfries, Scotland, UK (C.I.); Departments of Epidemiology (G.C.C.) and Nutrition (F.M.S.), Harvard School of Public Health, Boston, Mass; Channing Laboratory (G.C.C., F.M.S.) and Cardiovascular Division (M.A.P.), Brigham and Women’s Hospital, Harvard Medical School, Boston, Mass;...